Is it safe to leave the dryer on overnight?

Author: Thad O'Connell  |  Last update: Wednesday, May 27, 2026

You should never leave appliances on when you're out. Lots of people think it will never happen to them, but we attend around 115 fires each year caused by domestic appliances. That's about two every week.

How long can I leave the dryer on overnight?

For safety reasons, do not leave the dryer running overnight or when you leave home.

Is it safe to sleep with a dryer on?

No, it is not safe to switch on a tumble dryer and go to sleep or leave it unattended. Tumble dryers generate heat to dry clothes, and there is a potential risk of fire if they are left running without supervision.

Is it safe to leave the dryer running?

Is it okay to leave the dryer on overnight? It is not recommended to leave a dryer running at night or when you are not at home. The risks of fire and overheating are too high, even though it does not happen very often.

Is it safe to leave a dryer on unattended?

Don't leave appliances unattended – don't turn the tumble dryer on before you leave the house or go to bed. Tumble dryers contain powerful motors with fast moving parts that can get very hot. Keep your dryer well ventilated, make sure the vent pipe is kink free and not blocked or crushed in any way.

Is it OK to leave dryer running overnight?

How bad is it to leave clothes in dryer overnight?

Even house expert Martha Stewart states that there are no adverse effects if the clothes are left overnight in the washer or dryer. The best way to determine whether the clothes are okay is to smell them. If the clothes do not have an unpleasant odor, they are fine to put out to dry.

What to do if a dryer catches on fire?

If your dryer catches on fire, immediately call 911 and leave the dryer door closed—opening the door will feed oxygen to the fire and you may risk burns and/or exposure to carbon monoxide. If the fire is severe, evacuate the home immediately and wait for help.

Can I go to bed with the dryer running?

Do not leave a dryer running if you leave home or when you go to bed. Washing machines and dryers should be properly grounded. Make sure sure the outdoor vent flap is not covered by snow.

Can I leave my washing machine on overnight?

Don't leave the washing machine, tumble dryer or dishwasher running overnight or while you are out. They are a fire risk because of their high wattage, friction and motors.

Is it rude to run the dryer at night?

If you live in a detached house with ample distance between you and your neighbors, doing nightly laundry won't likely bother anyone. In contrast, if you share walls in an apartment or condo, it's in everyone's best interest to stick to daytime laundry hours.

Why shouldn't we dry clothes at night?

Do not leave laundry outside at night as it risks humidity and bad odors. Better to spread it out during the day for good drying in the air fresh.

Is it safe to run appliances at night?

“We advise consumers not to run appliances like a dishwasher overnight, and to be cautious about others, even recharging a cellphone overnight,” said Scott Wolfson, of the federal Consumer Product Safety Commission.

Do dryers automatically turn off?

These cycles detect the moisture level inside the dryer drum; once the desired dryness is achieved, the dryer automatically shuts off.

Can I leave my washer on when I'm not home?

Even though it's very tempting to leave the house and run errands with the washer or dryer running, you're setting yourself up for the risk of floods and fire.

Is it cheaper to run your dryer at night?

We've already established that overnight is the cheapest time to do your laundry. However, that's not the only factor to consider.

Why does the inside of my dryer smell burnt?

A clogged dryer vent can smell a few different ways depending on the operational state of the dryer. If the dryer is on, it can smell like something is on fire. This usually means that the lint is dry and starting to burn slightly. Other common smells include the concentrated smell of fabric softener or a musty odor.

Is it safe to leave a dryer unattended?

No. To avoid a fire hazard you should always ensure that you don't leave your dryer running when you're not at home. There should also be enough airflow around the dryer at all times. Fire authorities encourage regular maintenance and recommend you keep an eye on them while in use.

What happens if I leave my laundry overnight?

Leaving wet clothes in the washer for a few hours happens to everyone, but if they sit too long, you may risk mold and mildew developing. This not only affects your clothes, but the smell can also transfer to your washer, adding frustration to your laundry routine.

Is it safe to put a tumble dryer on at night?

Don't leave appliances unattended – don't turn the tumble dryer on before you leave the house or go to bed. Tumble dryers contain powerful motors with fast moving parts that can get very hot. Keep your dryer well ventilated, make sure the vent pipe is kink free and not blocked or crushed in any way.

What happens if you leave the dryer on too long?

Even electric dryers can catch fire. The main cause of electric dryer fires is overheating. If you use your dryer for too long, or if you leave the door open while drying clothes, then you could end up with a fire. Electric dryers catch fire often because they are designed to heat up quickly, so they overheat easily.

How long is too long to run a dryer?

Typically, a gas or electric dryer should take about 30 to 45 minutes to dry a full load of clothes. Dense fabrics—like a quilt or a load of thick bath towels—may take up to an hour to dry. If your dryer's taking too long to dry your laundry, it's important to figure out what's wrong instead of ignoring it.

Can you sleep with the washing machine on?

Don't leave the washing machine, tumble dryer or dishwasher on overnight and unattended. Don't leave mobile phones, tablets or e-cigarettes charging overnight. Check that your hob and oven switches are all off. Turn heaters off, rake out fires and put a fire guard in place.

How likely is a dryer to start a fire?

Clothes dryer fires are more common than you might think. The National Fire Protection Association (NFPA) reports that dryers and washing machines cause an average of 15,970 fires each year, with dryers causing 92% of them and an average of $200 million in property damage.

How do you know if your dryer is about to catch fire?

Additionally, you may notice a burning smell, or notice that your clothes and the outside of the dryer are too hot. If you notice any of these symptoms, or suspect that the airflow may be obstructed, stop the dryer immediately, unplug it, and check the duct and vent when they have had a chance to cool.

What is the number one cause of dryer fires?

Culprit #1: Lint.

Lint is the leading cause of dryer fires. It's highly flammable, and it's everywhere.

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